I have a family home in the Black Rock area in Bridgeport ct.

I purchased a  2 family home in the Black Rock area in Bridgeport ct.

I also use a rock star, investor-friendly Realtor the lives in Buford.

And as others have said Sponsors range from highly seasoned, experienced investment firms with large staffs to one-man-band solo "syndicators" who has done a house hack and think they are ready to sell securities and manage a multi million $ project - maybe they are (or not). 

They should provide you with an idea of what parts you own (ie. sheet rock, carpets, cabinets, fixtures, etc.)3.

If you do the owner-occupant route, you will be able to tap into some nicer areas because you will have less money in the deal as opposed to just buying a traditional rental where you will have to buy in usually B and lower areas to cash flow.

I don’t think it matters that much with multi families, I know investors who just put down rock or crushed granite to keep the maintenance low.

You need to determine from the Condo documents what the boundaries of your unit are and what things inside that unit and outside the unit that you would need to replace (could include Sheet Rock & Painting, Cabinetry, Fixtures, Heating & Air conditioning Units, etc.).  

I've heard from some people very connected with this neighborhood that anyone that says they are getting over 50% occupancy during the Covid era is not being truthful or they have lowered their prices to rock bottom.

If you raise rent at unit A make you do the same for B and C